TY  - RPRT
TI  - Are validated questionnaires valid?
AU  - Frederick A Matsen
AU  - Edward V Fehringer
PY  - 2006
DO  - 10.2106/00004623-200602000-00034
UR  - https://pubmed.ncbi.nlm.nih.gov/16452764/
ID  - 16452764
ER  -